摘要:
An article may be manufactured by providing a reticulate core element (456) in a mold shell having a shape at least partially corresponding to a shape of the article. The molten metallic material is introduced to the shell so as to at least partially infiltrate into the reticulate core element (456). The molten metallic material is permitted to solidify. The shell and the reticulate core element (456) are destructively removed. The removal leaves the article with one or more gas-permeable porous regions.
摘要:
A pattern (20) with internal cores for creating a hollow component is composed of a first pattern half (10) having one or more first self-locating features (12); a second pattern half (16) having one or more second self-locating features (18); and one or more cores (14) disposed in contact with the one or more first self-locating features (12) and the one or more second self-locating features (18). The method for its manufacture includes the steps of creating a first pattern half (10) having one or more first self-locating features (12); creating a second pattern half (16) having one or more second self-locating features (18); providing one or more cores (14); and assembling the pattern (20) by engaging the one or more first self-locating features (12) and the one or more second self-locating features (18) about the one or more cores (14).
摘要:
An article may be manufactured by providing a reticulate core element (456) in a mold shell having a shape at least partially corresponding to a shape of the article. The molten metallic material is introduced to the shell so as to at least partially infiltrate into the reticulate core element (456). The molten metallic material is permitted to solidify. The shell and the reticulate core element (456) are destructively removed. The removal leaves the article with one or more gas-permeable porous regions.